Note 1 - Organization (Details Textual) $ in Thousands |
12 Months Ended | |||
|---|---|---|---|---|
Jun. 02, 2025 |
May 02, 2025 |
Dec. 31, 2025
USD ($)
|
Dec. 31, 2024
USD ($)
|
|
| Retained Earnings (Accumulated Deficit) | $ (262,396) | $ (250,475) | ||
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | (11,801) | $ (9,846) | ||
| Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation | $ 1,169 | |||
| Reverse Stock Split [Member] | ||||
| Stockholders' Equity Note, Stock Split, Conversion Ratio | 15 | 15 | ||
| X | ||||||||||
- Definition Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|